point out mknod is not normally part of mksh either

mksh.1

@@ -1,4 +1,4 @@
-.\" $MirOS: src/bin/mksh/mksh.1,v 1.373 2015/07/06 17:48:35 tg Exp $
+.\" $MirOS: src/bin/mksh/mksh.1,v 1.374 2015/07/09 19:50:44 tg Exp $
 .\" $OpenBSD: ksh.1,v 1.160 2015/07/04 13:27:04 feinerer Exp $
 .\"-
 .\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
@@ -74,7 +74,7 @@
 .\" with -mandoc, it might implement .Mx itself, but we want to
 .\" use our own definition. And .Dd must come *first*, always.
 .\"
-.Dd $Mdocdate: July 6 2015 $
+.Dd $Mdocdate: July 9 2015 $
 .\"
 .\" Check which macro package we use, and do other -mdoc setup.
 .\"
@@ -3691,6 +3691,9 @@ and
 See
 .Xr mknod 8
 for further information.
+This is not normally part of
+.Nm mksh ;
+however, distributors may have added this as builtin as a speed hack.
 .Pp
 .It Xo
 .Ic print
@@ -3751,7 +3754,7 @@ Approximately the same as the
 .Xr printf 1 ,
 utility, except it uses the same
 .Sx Backslash expansion
-and I/O code and does hot handle floating point as the rest of
+and I/O code and does not handle floating point as the rest of
 .Nm mksh .
 This is not normally part of
 .Nm mksh ;